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THE USE OF MIXED REFRIGERANTS IN AIR TO AIR HEAT PUMPS.

Author(s) : COOPER W. D.

Summary

WITH MIXTURES OF A HIGH AND LOW-BOILING POINT REFRIGERANT, SUCTION VAPOR DENSITY AND COMPRESSOR CAPACITY CAN BE INCREASED BY REMOVING SOME OF THE HIGH BOILER FROM THE ACTIVE CIRCUIT. THIS IS DONE BY USING THE ACCUMULATOR AS A ONE-PLATE STILL. THE ACCUMULATED LIQUID IS RICHER IN THE HIGH BOILER AND THE CIRCULATING FRACTION IS RICHER IN THE LOW BOILER THAN IS THE CHARGED COMPOSITION. IN TESTS WITH A SPLIT SYSTEM HEAT PUMP AND A MIXTURE OF R13 B1 AND R152 A, HEATING CAPACITY WAS INCREASED UP TO 50 PERCENT OVER R22 CAPACITY WHEN THE HEAT SOURCE TEMPERATURE WAS 255 K (-18 DEG C). IN HIGH HEAT SOURCE TEMPERATURE HEAT PUMP PERFORMANCE WITH R13 B1 AND R152 A WITHOUT ACCUMULATION WAS EQUIVALENT TO R22 RESULTS.

Details

  • Original title: THE USE OF MIXED REFRIGERANTS IN AIR TO AIR HEAT PUMPS.
  • Record ID : 1984-1611
  • Languages: English
  • Publication date: 1982
  • Source: Source: ASHRAE Trans.
    vol. 88; n. 1; 1159-1169; 3 fig.; 7 tabl.; 7 ref.; discuss.
  • Document available for consultation in the library of the IIR headquarters only.

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